Home / 12,787,653.60-19,228,719.60-10,709,128.80

Finding the Fourth Proportional to 12,787,653.60, 19,228,719.60 and 10,709,128.80

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Solution

The fourth proportional to 12,787,653.60, 19,228,719.60 and 10,709,128.80 is: 16,103,254.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787,653.60 : 19,228,719.60 = 10,709,128.80 : x
  2. Step 2: Convert to fraction form
    12,787,653.60/19,228,719.60 = 10,709,128.80/x
  3. Step 3: Cross multiply
    12,787,653.60x = 19,228,719.60 × 10,709,128.80
  4. Step 4: Simplify right side
    12,787,653.60x = 205,922,834,855,484.50
  5. Step 5: Solve for x
    x = 205,922,834,855,484.50/12,787,653.60
  6. Step 6: Final answer
    x = 16,103,254.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.